Before presenting our unfolded architecture, we introduce the basics of WMMSE [1]}.
Essential for this classical algorithm is to reformulate (REF ) as
\(&\min _{\mathbf {w,u,v}} \sum _{i=1}^M (w_i e_i - \log w_i ),\\& \text{st.} \quad e_i = (1-u_i h_{ii} v_i)^2 + \sigma ^2 u_i^2 + \sum _{i \ne j} u_i^2 h_{ij}^2 v_j^2, \nonumber \\& \qquad \,\, \, v^2_i \le p_{\max }, \,\,\,\, \text{for all} \,\, i, \nonumber \) 
